Product Overview
The Bently Nevada 21000-34-00-00-095-03-02 is a precision-engineered proximity probe housing assembly designed for reliable vibration and position monitoring in critical rotating machinery. This industrial automation module provides a robust, explosion-proof enclosure for a 3300 XL 8 mm probe, ensuring accurate measurements in harsh environments.
Part of the trusted 21000 series, this housing assembly combines an aluminum body with a 304 stainless steel sleeve, delivering durability and corrosion resistance. It is rated for hazardous areas with CSA Type 4 enclosure certification and fully complies with the American Petroleum Institute's API 670 Standard for externally mounted proximity probe housings.
Key Features & Specifications
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Model: 21000-34-00-00-095-03-02
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Probe Option: 3300 XL 8 mm probe with connector protector, selectable hazardous area approvals
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Probe Cable Length: Not required (00)
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Standoff Adapter: None (00)
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Probe Penetration: 9.5 inches (095)
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Fitting Option: One 3/4-14 NPT plug, one 3/4-14 to 1/2-14 NPT reducer, and one cable seal grip with grommets for cable sizes 1/8 to 3/16, 1/4 to 5/16, and 5/16 to 3/8 inches
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Mounting Thread: 3/4-14 NPT (-02)
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Material: Aluminum body with 304 stainless steel sleeve
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Weight: 1.1 kg (2.4 lb) typical, without fittings
Technical Specifications
| Parameter |
Value |
| Probe Penetration |
9.5 in |
| Mounting Thread |
3/4-14 NPT |
| Body Material |
Aluminum |
| Sleeve Material |
304 Stainless Steel |
| Weight (typical) |
1.1 kg (2.4 lb) |
Industry Applications
The Bently Nevada 21000-34-00-00-095-03-02 is ideal for use in refineries, chemical plants, power generation facilities, and other industrial settings where reliable machinery protection is essential. It is specifically designed for externally mounted proximity probes, providing accurate shaft vibration and position readings that help prevent catastrophic failures.
Because it is CSA Type 4 certified and API 670 compliant, this housing assembly suits applications requiring stringent safety and performance standards. For example, in a refinery, the explosion-proof design allows safe installation in classified areas, while the stainless steel sleeve resists corrosive atmospheres.
Installation & Setup Guidance
When installing the 21000-34-00-00-095-03-02, ensure the mounting thread (3/4-14 NPT) matches the machine's tapping. The included fittings allow flexible conduit connections, and the cable seal grip accommodates various cable diameters. Proper torque on the dome cover and fittings is crucial to maintain the explosion-proof rating.
Verify that the probe penetration (9.5 inches) fits the application's clearance requirements. The housing is designed for external mounting, so ensure adequate space for the probe and cable routing. Always follow the manufacturer's instructions for hazardous area installations.
Maintenance & Reliability
Routine inspection of the housing assembly ensures long-term reliability. Check the O-rings and thread seal periodically for wear or damage, and confirm that all fittings remain tight. The aluminum body and stainless steel sleeve resist corrosion, but in aggressive environments, regular cleaning may be necessary.
By maintaining the 21000-34-00-00-095-03-02, you minimize downtime and extend the service life of your monitoring system, directly impacting your bottom line through reduced maintenance costs and improved asset availability.
Selection Guide & Purchasing Advice
Before ordering, confirm that the probe option, cable length, and mounting thread match your existing system requirements. The 21000-34-00-00-095-03-02 includes a 3300 XL 8 mm probe with connector protector, and the mounting thread is 3/4-14 NPT. If you need a different configuration, contact our sales team for assistance.
At PLC Source PRO, we supply new, original Bently Nevada parts with full factory warranty. For expert advice on selecting the right housing assembly, reach out to our technical support.